ASTROSAT CZTI

Data Quality Report

Orbit 04556

Creation date: 2024-06-27T14:43:44.980737
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_233T10_9000000570_04556cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04556cztM0_level2_quad_clean.evt
Size (bytes)556,430,40077,947,200
Size530.7 MB 74.3 MB
Events in quadrant A4,706,509474,912
Events in quadrant B3,150,696496,400
Events in quadrant C3,395,820479,719
Events in quadrant D5,155,500453,471

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184793
B0138092
C0147492
D0198842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65244987.633354%
B6524330.505825%
C65241842.820356%
D652466310.162477%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7659 6526 373 373 4.87% 5.72%
B 7659 6526 9 9 0.12% 0.14%
C 7659 6526 128 128 1.67% 1.96%
D 7659 6526 585 585 7.64% 8.96%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 253 856230 5767.78 724 706 148.3
A 0 31 765607 5156.82 724 706 148.3
A 0 118 113536 760.68 724 706 148.3
B 4 80 63254 432.21 757 738 144.6
B 15 204 60205 411.13 757 738 144.6
B 10 246 27653 186.08 757 738 144.6
C 14 48 496473 2939.91 720 723 168.6
C 7 247 65401 383.56 720 723 168.6
C 9 54 10270 56.62 720 723 168.6
D 2 37 931795 5555.72 693 671 167.6
D 13 235 923648 5507.11 693 671 167.6
D 13 25 394223 2348.2 693 671 167.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter